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I am using dhcpcd on a router to do IPv6 prefix delegation on vlan interfaces and sometimes some of the interfaces do not end up with all their addresses. Watching the system boot, I can see dhcpcd is started before any interfaces are brought up.

It appears that the current initscript for dhcpcd starts the service before (concurrently?) with networking. I think the best solution is the change dhcpcd.initd from:

provide net
need localmount
use logger network
after bootmisc modules

to:

need localmount net
use logger
after firewall

This ensures that the network interfaces are completely up before trying to assign any dhcp addresses to them.

Note I also removed network since no current service seems to provide that. Also, bootmisc and modules are loaded before the networking initd script anyway so they aren't needed in the after.